Granted Patent
Utility
US 5,374,690 · App. 07/949,529
Block copolyester resins
Inventor:
Hussain Al Ghatta
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Dec 28, 1992
Inventor
Hussain Al Ghatta
Assignee (at issue)
M. & G. Richerche S.p.A.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.